Doubles teams are reassigned when a new member joins the badminton team, and former singles player Saeki Sota is assigned to play doubles with his brother Toya. Toya is excited to play doubles with his brother, but Sota's feelings on the change are complicated, and a fight between the two threatens to dissolve their doubles team entirely. Meanwhile, Toya finds himself in a bind at work, too...
when I thought about what I could
 do to help SunBev improve,
،عندما فكرت فيما يمكنني تقديمه لمساعدة تطوّر فريق سانبيف
überlegte ich mir, wie ich SunBev
noch weiter verbessern könnte.
al pensar en qué podía hacer
para ayudar a SunBev,
al pensar en qué podía hacer
para ayudar a SunBev,
Il n’y a qu’en étant entraîneur
ho pensato a cosa potessi fare
 per aiutare la SunBev a migliorare,
eu pensei no que poderia
fazer pra Sunlight melhorar
я задумался, чем же 
могу помочь «СанБеву».